package com.gaofeng.day17;

public class demo01 {
    public static void main(String[] args) {

//        final int a = 10;
//        a += 20;
//        System.out.println(a);
    }
}

class Fu{
    public final  void show(){
        System.out.println("父类show");
    }
}

class Zi extends Fu{

//    @Override
//    public void show(){
//        System.out.println("子类的show方法");
//    }
}